| Assessment, Office of (516) 571-2311 |
| Assessment Review Commission (516) 571-2391 |
| Board of Elections (516) 571-2411 |
| Budget-Office of Management and Budget (516) 571-4273 |
| Business Devlopment Unit (516) 571-1948 |
| Civil Service Commission (516) 572-1882 |
| Community College (516) 572-7500 |
| Community Development, Office Of (516) 572-1915 |
| Computer Operations Server Center (516) 571-9917 |
| Constituent Affairs (516) 571-6000 |
| Consumer Affairs (516) 571-2600 |
| Coord. Agency for Spanish Americans (C.A.S.A.) (516) 572-0750 |
| Cornell Cooperative Extension (516) 292-7990 |
| County Assessor's Office (516) 571-2311 |
| County Attorney (516) 571-3056 |
| County Clerk, Office of the (516) 571-2664 |
| County Comptroller's Office (516) 571-2386 |
| County Executive (516) 571-3131 |
| County Legislature (516) 571-6636 |
| Crime Victims Program (516) 573-3330 |
| Deferred Compensation Board (516) 861-4020 |
| Department of Public Works (516) 571-9600 |
| District Attorney's Office (516) 571-2994 |
| Economic Development, Office of (516) 572-1915 |
| Emergency Management (516) 573-0636 |
| Film Commission (516) 571-3168 |
| Fire Commission (516) 572-1000 |
| Fleet Services (516) 573-3490 |
| Governmental Research, Director of (516) 571-6105 |
| Grants Management (516) 571-0413 |
| Hardship Review (516) 571-4166 |
| Health Department (516) 227-9697 |
| Housing – Office of Housing & Homeless Services (Section 8) (516) 572-1900 |
| Human Resources (516) 571-3072 |
| Human Rights Commission (516) 571-3663 |
| Industrial Development Agency (516) 572-1966 |
| Information Technology (516) 571- 0284 |
| Investigations, Commissioner of (516) 571-0533 |
| Jurors, Commissioner of (516) 571-2624 |
| Labor Relations (516) 571-6053 |
| Labor Department (516) 571-3091 |
| Legislative Affairs, Office of (516) 571-1031 |
| Legislative Budget Review, Office of (516) 571-6296 |
| Legislative and Intergovernmental Affairs (516) 571-4397 |
| Legislature, Clerk of (516) 571-4253 |
| Mail Services (516) 571-3964 |
| Management and Budget, Office of (516) 571-4273 |
| Medical Center (Nassau University Medical Center) (516) 572-0123 |
| Medical Examiner (516) 572-6400 |
| Mental Health, Chemical Dependency and Developmental Disabilities Services (516) 227-7057, (516)227-7007 |
| Minority Affairs, Office of (516) 571-6174 |
| Nassau Community College (516) 572-7500 |
| Nassau Coliseum (516) 794-9303 |
| Parks, Recreation and Museums (516) 572-0200 |
| Photo Department (516) 571-4352 |
| Physically Challenged, Office for the (516) 227-7399 |
| Planning Commission (516) 571-5844 |
| Planning Federation (516) 571-0399 |
| Police Department (516) 573-7000 |
| Policy and Communications (516) 571-1081 |
| Press Office (516) 571-4225 |
| Printing and Graphics (516) 571-4355 |
| Probation Department (516) 571-5700 |
| Public Administrator, Office of The (516) 571-5911 |
| Public Security (516)572-0300 |
| Public Works Department (516) 571-9600 |
| Purchasing, Office of (516) 571-4200 |
| Real Estate Planning and Development (516) 571-4207 |
| Senior Citizen Affairs (516) 227-8900 |
| Shared Services (516) 571-5825 |
| Sheriff's Department (516) 571-2113 |
| Sign Shop (Highway) (516) 572-0450 |
| Sign Shop (Eisenhower Park) (516) 572-0304 |
| Social Services Department (516) 227-8519 |
| Special Projects (516) 571-5993 |
| Traffic and Parking Violations Agency (516) 572-2700 |
| Traffic Safety Board (516) 571-5032 |
| Treasurer's Office (516) 571-2090 |
| VEEB (516) 572-1700 |
| Veterans Services (516) 572-8452 |
| Volunteer Services (516) 571-4481 |
| Youth Board (516) 227-7134 |
